Apple Power Macintosh G3 Service Source

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Apple Power Macintosh G3 Desktop PDF Service source

  • Model: Power Macintosh G3
  • Brand: Apple
  • Type: Service source
  • Category: Desktop
  • File Size: (6.13 Mb)
  • No. of pages: 275
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1 Page 1 of Apple Power Macintosh G3 Service source

Power Macintosh G3 Service Source K Power Macintosh G3 Desktop (...)

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Apple Power Macintosh G3 Service source Service Source K Hot Issues Power Macintosh G3 Desktop (...)

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Apple Power Macintosh G3 Manual Hot Issues Introduction - 1 Introduction This chapter is designed to highlight unique or high- priority product issues that you should be aware of before servicing the Power Macintosh G3 Desktop computer. This chapter alerts you to important issues and provides links to other areas in the manual where more complete information can be found. This chapter is not intended to replace other parts of this manual; it merely provid (...)

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Apple Power Macintosh G3 Manual Hot Issues Shared Logic Board - 2 Shared Logic Board The Power Macintosh G3 Desktop and Minitower computers use the same logic board, but there are jumper settings that differ between them (see “Jumper Location J28” and “Jumper Location J16” in the Troubleshooting chapter). Processor Module Vs. Card Whereas previous Power Macintosh computers featured a user-installable processor card, this logic board uses a proc (...)

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Power Macintosh G3 Hot Issues Power Supply Jumper - 3 Power Supply Jumper The Power Macintosh G3 Desktop logic board has a power supply jumper, which is installed at J28. The setting of this jumper differs between the Power Mac G3 Desktop and Minitower. Failure to install this jumper in the correct position may result in a computer that won’t boot up. (See “Jumper Location J28” in the Troubleshooting chapter.) Processor Module Jumper (...)

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Apple Power Macintosh G3 Service source Hot Issues Warranty Sticker - 4 Warranty Sticker There is a warranty sticker that covers the processor module jumper. The customer’s warranty is void if this sticker is tampered with. Service Providers must replace this sticker if they have removed it during servicing to protect the customer’s warranty. (See “Processor Module” in the Take-Apart chapter.) Power Supply Voltage Setting There is a switch on the back (...)

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Apple Power Macintosh G3 Manual Hot Issues Voltage Regulator - 5 Voltage Regulator There is a removable voltage regulator on the logic board, which comes with the logic board and can also be ordered as a separate module. (See “Voltage Regulator” in the Troubleshooting chapter.) I/O Card Some I/O functions on the logic board are handled through a removable I/O card that must be installed for the computer to operate properly. (See “I/O Cards” in (...)

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Power Macintosh G3 Hot Issues ROM DIMM - 6 ROM DIMM The Power Macintosh G3 Desktop logic board uses a ROM DIMM as opposed to soldered ROM. You should not remove the ROM DIMM from the logic board. (See “Logic Board” in the Take-Apart chapter for instructions on how to prepare the logic board for return to Apple Computer.) SDRAM DIMMs The Power Macintosh G3 Desktop uses SDRAM DIMMs. DIMMs from older Macintosh computers, although they wil (...)

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Apple Power Macintosh G3 Desktop Manual Hot Issues SGRAM Video Memory - 7 SGRAM Video Memory Power Macintosh G3 computers use SGRAM video memory. Use only SGRAM SO-DIMMs in these machines. Never install the 256K or 512K video memory DIMMs used in older Macintosh computers. (See “SGRAM Video Memory” in the Basics chapter.) EIDE Bus Issue If you have only one device connected to the EIDE bus, the device must be plugged into the first EIDE connector on the l (...)

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Apple Power Macintosh G3 Desktop Manual Hot Issues Master/Slave Support - 8 Master/Slave Support Some Power Macintosh G3 Desktop computers support adding two ATA/IDE devices to the same ATA/IDE channel, or what is commonly known as master and slave. This configuration provides user with the ability to add additional hard drives or removal media devices to their system. Because the cabling is different, you cannot replace ATA drives with SCSI drives and vice versa (...)

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Apple Power Macintosh G3 Desktop Manual Hot Issues DVD-ROM Disk Damage - 9 the Take-Apart chapter.) DVD-ROM Disk Damage The Power Macintosh G3 Desktop offers DVD-ROM drives as a build-to-order option. It is important to note that DVD disks are much more prone to damage than CD-ROM disks. Any type of scratch or other abuse may result in a disk that is unreadable. (See “DVD-ROM Drive Technology” in the Basics chapter.) CD-ROM Ejection Problem If you (...)

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Apple Power Macintosh G3 Service source Hot Issues HFS+ Formatted Drives - 10 HFS+ Formatted Drives Hard drives that ship with the Version 2 Power Macintosh G3 logic board (part number 661-2063) use a file format called Mac OS Extended format, also referred to as HFS+. Norton Utilities version 3.5 is not compatible with Mac OS and version 3.5.1 and earlier can result in hard drive corruption and loss of all data on the hard drive. If you experience problems with (...)

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Power Macintosh G3 Hot Issues Power-On Issue - 11 Power-On Issue If you experience a power-on issue with the Power Macintosh G3 Desktop where the power supply fan is spinning, but there is no boot tone, no hard drive noise, no power LED, and no video, you may have an improperly installed or faulty voltage regulator. You should always reseat and/or replace the voltage regulator before replacing the logic board. (See “System” symptom/cures (...)

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Apple Power Macintosh G3 Desktop Manual Service Source K Basics Power Macintosh G3 Desktop (...)

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Power Macintosh G3 Basics Overview - 1 Overview The Power Macintosh G3 desktop chassis design allows you to access the logic board and its components, including the removable processor, without having to remove the power supply or any drives. This flexible design makes this computer easy to service and upgrade. The Power Macintosh G3 desktop has a unique PERCH slot that accepts an I/O card that provides audio capabilities of the comput (...)

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Apple Power Macintosh G3 Desktop Manual Basics Overview - 2 Features of the Power Mac G3 Desktop include: • PowerPC G3 microprocessor running at 233 MHz, 266 MHz, or 300 MHz • RAM expandable to 384 MB in 3 DIMM card slots using 64-bit 168-pin JEDEC-standard 3.3 V unbuffered SDRAM DIMM cards (Note: to expand to the maximum capacity of 384 MB requires low-profile DIMMs with maximum height of 1.15”. Using higher-profile DIMMs with a height of 1.25”, the max (...)

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Apple Power Macintosh G3 Manual Basics Overview - 3 • Three expansion bays for adding internal 3.5-inch SCSI devices • Optional 100 MB SCSI Iomega or ATAPI Zip drive in one of the expansion bays • CD-ROM ATAPI drive at 24X speed (unless customer orders DVD-ROM drive) • 1.4 MB SuperDrive • One SCSI port • Two GeoPort serial ports • 10BASE-T Ethernet port • One ADB port • Three PCI expansion slots to accept • three 7-inch or 12-inch PCI card (...)

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Apple Power Macintosh G3 Service source Basics Overview - 4 • 2 MB video RAM expandable to 4 MB or 6 MB with 3.3 V, 83 MHz or faster SGRAM on a 144-pin small outline dual inline memory module (SO-DIMM) Optional Build-to-Order Power Mac G3 Desktop Features: • ATAPI or SCSI Zip drive • Ultra Wide SCSI PCI card • 4 GB or 9 GB Ultra Wide 3.5” SCSI hard drive(s) (replaces 4 GB or 6 GB ATA hard drive(s)) • DVD-ROM Drive (in place of CD-ROM drive) • 10/100 (...)

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Power Macintosh G3 Basics Data Buses - 5 Data Buses The data buses on the Power Macintosh G3 Desktop include: • Narrow SCSI-1: The SCSI-1 chain transfers data at up to 5 MB per second. The narrow SCSI-1 chain supports up to seven internal and external SCSI devices. The Narrow SCSI-1 bus is used to connect the ZIP drive (if present) and any SCSI-1 hard drives. • Ultra Wide SCSI-3 (provided on Ultra Wide SCSI card, which is optional): The Ul (...)

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Apple Power Macintosh G3 Manual Basics Data Buses - 6 Note: Some Power Mac G3 system use a Master/Slave interface. See “Support for Master and Slave” later in this section for more information. The following table gives more information about the data buses in the Power Macintosh G3 Desktop computer. (...)

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Apple Power Macintosh G3 Manual Basics Data Buses - 7 Table 1: Internal Buses on G3 Desktop Interface Connector Type Notes Max # of Drives Max Data Transfer Rate SCSI-3 1 (Ultra Wide) 68-Pin Requires Ultra Wide SCSI PCI card. 2 2 40 MB per second EIDE 40-Pin There are two EIDE connectors on the logic board. 2 3 — SCSI-2 4 (Fast) 50-Pin Requires Ultra Wide SCSI PCI card. 7 10 MB per second SCSI-1 (Narrow) 50-P (...)

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Apple Power Macintosh G3 Manual Basics Data Buses - 8 Notes for Table 1: 1 The Ultra Wide SCSI PCI card is optional on the G3 Desktop unit. The Apple Ultra Wide SCSI card and cable allow you to connect a maximum of 2 devices to this bus. 2 Physical space inside the computer limits this number to 2. 3 The ATAPI CD-ROM drive, ATAPI DVD-ROM drive, and ATA hard drive (if present) use this bus. 4 Ultra Wide SCSI PCI card is optional on the G3 D (...)

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Apple Power Macintosh G3 Manual Basics Data Buses - 9 Narrow SCSI-1 Bus All internal and external devices on the SCSI-1 chain must have unique ID numbers. SCSI ID numbers 0 through 6 are available. Always terminate the last internal and the last external SCSI-1 device. Ultra Wide SCSI-3 Bus Ultra Wide SCSI support is offered on the Power Macintosh G3 Desktop as an optional feature via an Ultra Wide SCSI PCI card (p/n 661-2011). If present, this card is (...)

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Apple Power Macintosh G3 Desktop Manual Basics Data Buses - 10 Important : Detailed information on how to route and tape the Ultra Wide SCSI cable can be found in the Take-Apart chapter in the Hard Drive topic. All devices on the same SCSI bus must have unique ID numbers, but devices on different SCSI buses may use the same SCSI ID number. (For example, you could have a removable media drive with ID number 3 connected to the Narrow SCSI-1 bus and a hard drive wit (...)

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Apple Power Macintosh G3 Desktop Manual Basics Data Buses - 11 Table 2: Assigning Ultra Wide SCSI ID Numbers Ultra Wide SCSI ID # Device 0 Factory-installed hard drive (terminated) 1 Factory-installed hard drive (optional) 2 — 6 Available (but not recommended) 7 SCSI PCI card (terminated) 8 —15 Available Important : The factory-installed internal hard drive and the SCSI card are both terminated. Other SCSI devices you install and connect to the int (...)

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Power Macintosh G3 Basics Data Buses - 12 EIDE Bus The internal EIDE bus supports the internal CD-ROM or DVD-ROM drive. You can connect another EIDE device, such as an EIDE hard drive, to the second channel of the EIDE bus. (Note that in the standard G3 Desktop configuration, there is already an ATA hard drive attached to the second EIDE channel. Some build-to-order G3 Desktops, however, come with the optional Ultra Wide SCSI card and Ultra W (...)

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Apple Power Macintosh G3 Manual Basics Data Buses - 13 devices to the EIDE bus. If you are connecting a single device to the EIDE bus, you should use the J9 connector (the one closer to the rear panel). If you plug a single device into the J10 EIDE connector and leave J9 empty, the device may not boot. If the Power Macintosh G3 Desktop ships with two EIDE devices (a CD-ROM or DVD-ROM drive and an ATA hard drive), both EIDE connectors (J9 and J10) will be au (...)

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Power Macintosh G3 Basics Data Buses - 14 hard drives or removal media devices to their system. The Power Macintosh G3 Desktop units that support this feature can only be identified by looking at the logic board itself and verifying the revision of the built-in video ASIC made by ATI Technologies. If you are looking at the logic board with the rear connector towards you, the video ASIC is located approximately 1” from the built-in video connec (...)

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Power Macintosh G3 Basics Data Buses - 15 Configuring or Connecting Master/Slave Devices Each IDE channel can support either one or two devices. All Power Macintosh G3's have two ATA/IDe channels. ATA/IDE devices each contain their own integrated controllers, and so in order to maintain order on the channel, it is necessary to have some way of differentiating between the two devices. This is done by giving each device a designation as ei (...)

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Apple Power Macintosh G3 Manual Basics Data Buses - 16 Devices are designated as master or slave using jumpers, small connectors that fit over pairs of pins to program the drive through hardware. Each hard drive manufacturer uses a different combination of jumpers (usually named differently) for specifying whether its drive is master or slave on the channel. Some disks put this information right on the top label of the drive itself, while many do not; it s (...)

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Apple Power Macintosh G3 Service source Basics Data Buses - 17 drives the master, or both the slave will likely result in a very confused system. Note : It makes no difference which connector on the ATA/ IDE cable is used in a standard ATA/IDE setup, because it is the jumpers that control master and slave, not the cable. As long as one device is jumpered as master and the other as slave, any two ATA/IDE or ATAPI devices should work together on a single channel. (...)

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Apple Power Macintosh G3 Desktop Manual Basics Ultra Wide SCSI Card - 18 Ultra Wide SCSI Card Ultra Wide SCSI support is offered on the Power Macintosh G3 Desktop as an optional feature via an Ultra Wide SCSI PCI card (p/n 661-2011). If present, this card is installed in the first PCI slot on the logic board. Connecting Additional Internal Devices If you add an internal drive to the Ultra Wide SCSI bus, you need to assign it a SCSI ID number in the 8 to 15 ran (...)

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Apple Power Macintosh G3 Service source Basics Ultra Wide SCSI Card - 19 second Ultra Wide SCSI card. To install a second Ultra Wide SCSI card, follow these guidelines: • Use a single-channel card if possible. • If you need to add a dual-channel Ultra Wide SCSI card, contact the PCI card vendor to verify compatibility with the Power Macintosh G3 Desktop. • Do not use the Apple Ultra Wide SCSI PCI card (p/n 661-2011) as the second card unless it is shipped from (...)

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Apple Power Macintosh G3 Desktop Manual Basics Ultra Wide SCSI Card - 20 • Embedded RISC I/P processor • Ultra SCSI connector: Fine pitch 68-pin “P” • Flash ROM BIOS • PCI 2.1 compliant • Large command FIFO • Supports disconnect/reconnect • Asynchronous I/O support • Multiple initiator support • SCSI-3 tagged command queuing • SCSI Manager 4.3 compatible SCSI-3 Bus • Adapter interface: Special Bus management hardware for video, fileservers, (...)

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Power Macintosh G3 Basics Ultra Wide SCSI Card - 21 • SCSI interface: SCSI-1, SCSI-2, SCSI-3, Ultra SCSI • Electrical signals: Single-ended versions • Extensive device support: Up to 105 Through Logical Unit Numbers (LUN’s) (Wide and Narrow devices) Cable Length Limits When using Ultra SCSI single-ended devices, you can connect up to 8 devices if the total cable length is no longer than 1.5 meters (about 4.5 feet). If total cable lengt (...)

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Apple Power Macintosh G3 Manual Basics Ultra Wide SCSI Card - 22 lengths as short as possible to ensure high signal quality and performance. If you connect a combination of Wide 16-bit devices and Narrow 8-bit devices on the same connector (not recommended), Wide devices must be connected first (closest to the connector), followed by the Narrow devices. Refer to the documentation that came with your SCSI devices to determine if your device is Wide or Narrow (...)

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Apple Power Macintosh G3 Manual Basics 10/100 BaseT Ethernet Card - 23 10/100 BaseT Ethernet Card The specifications for the 10/100 BaseT ethernet card, which is an optional feature in the G3 Desktop, are as follows: • Open Transport: Mac OS 8.1 or later, AppleShare, AppleTalk, NetWare for Macintosh, TCP-IP • Connector: RJ-45 (for 10BaseT and 100BaseT) • Media, 10BaseT: Cat 3, 4, or 5 UTP on 2 pairs up to 100M • Media, 100BaseT: Cat 5 UTP on 2 pairs (...)

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Apple Power Macintosh G3 Manual Basics 10/100 BaseT Ethernet Card - 24 • Controllers: DECchip 21140, 32-bit internal processor per channel (...)

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Apple Power Macintosh G3 Manual Basics DVD-ROM Drive Technology - 25 DVD-ROM Drive Technology DVD stands for Digital Versatile Disc, an audio/video/data standard based on high-density next-generation optical discs. Apple Computer offers a DVD-ROM drive through the build-to-order (BTO) program which is capable of playing DVD-ROM disks. Warning: DVD disks are much more prone to damage than CD-ROM disks. Any type of scratch or other abuse may result (...)

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Apple Power Macintosh G3 Desktop Manual Basics DVD-ROM Drive Technology - 26 DVD discs can hold nearly 26 times the amount of data that can be stored on a conventional CD. This capacity virtually eliminates the need to swap discs in the middle of a game or application and at the same time reduces the cost and the number of discs necessary to hold the data. The following table clearly illustrates the difference between CD and DVD storage possibilities. (...)

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Apple Power Macintosh G3 Desktop Manual Basics DVD-ROM Drive Technology - 27 Table 3: Storage Capacities Disc Type Diameter Sides & Layers Capacity Playback Time (video) CD-ROM 120mm SS 650 MB Max 74 min audio DVD-5 120mm SS/SL 4.7 GB Over 2 hours of video DVD-9 120mm SS/DL 8.5 GB Approx. 4 hours DVD-10 120mm DS/SL 9.4 GB Approx. 4.5 hours DVD-18 120mm DS/DL 17 GB Over 8 hours Table Notes: SS=Single Sided, SL=Single Layer, DS=Double Sided, DL=Double Layered (...)

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Apple Power Macintosh G3 Desktop Manual Basics DVD-ROM Drive Technology - 28 To squeeze all this information onto the CD-sized disc, DVD disc designers: 1)made track spacing and the pits and lands used to record data nearly half the size of the original CD design; 2) made the discs double sided and added another data layer to each side creating a potential for four layers of data per disc. The figure below illustrates the layers of a DVD disc. (...)

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Apple Power Macintosh G3 Manual Basics DVD-ROM Drive Technology - 29 DVD Layers (...)

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Apple Power Macintosh G3 Service source Basics DVD-ROM Drive Technology - 30 Compared to CD, DVD uses smaller pits and a more closely spaced track.The result is a significant increase in data density. The higher Numerical Aperture (NA) lens of DVD helps the laser focus on the smaller pits. Like CD, DVD is 120 mm (4-3/4 inches) in diameter. Like CD, DVD is 1.2 mm thick composed of (2) 0.6 mm substrates bonded together. The new DVD Players will be able to play existi (...)

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Apple Power Macintosh G3 Service source Basics DVD-ROM Drive Technology - 31 Table 4: CD vs. DVD Comparison CD DVD Disc Diameter 120mm 120mm Disc Thickness 1.2mm 1.2mm Disc Structure Single substrate Two bonded 0.6mm substrates Laser Wavelength 780nm (infrared) 650 and 635nm (red) Numerical Aperature 0.45 0.60 Track Pitch 1.6um 0.74um Shortest Pit/Land Length 0.83um 0.4um (...)

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Power Macintosh G3 Basics DVD-ROM Drive Technology - 32 Data Layers 1 1 or 2 Data Capacity Approx. 680 MB Single Layer: 4.7 GBx2 Dual Layer: 8.5 GBx2 Data Transfer Rate Mode 1: 153.6 KB/sec Mode 2: 176.4 KB/sec 1,108 KB/sec, nominal Table 4: CD vs. DVD Comparison CD DVD (...)

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Apple Power Macintosh G3 Manual Basics DVD-ROM Drive Technology - 33 Apple DVD-ROM Drive Specs The Apple DVD-ROM Drive is an ATAPI drive. It uses an IDE port on the Macintosh for connection to the computer. Below are some of the specs for the drive. Note that the above transfer rate info varies from the data below. The numbers above reflect the DVD specification where the below numbers are for the drive that Apple is shipping. Access Times (including lat (...)

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Apple Power Macintosh G3 Service source Basics DVD-ROM Drive Technology - 34 Transfer Rate DVD: 2,705 KB/second CD Mode 1: 1,293 to 3,000 KB/second CD Mode 2: 1,474 to 3,429 KB/second Disk Format Support DVD 9660 Bridge (DVD-ROM Book, DVD-Video Book) Red- Book, Yellow-Book, CD-ROM XA, DA-I Bridge, Photo-CD, Video CD, CD-I Ready, CD-G, Multi-session (Photo-CD, CD Extra) Note: To be able to play the DVD-Video disks, you must have an additional PCI decoder ca (...)

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Apple Power Macintosh G3 Manual Basics DVD-ROM Drive Technology - 35 you will need to purchase a PCI decoder card. DVD Software Drivers Apple DVD-ROM UDF Volume Access These two extensions will allow a DVD disk to be mounted on the desktop. DVD disks use a format called universal disk format (UDF) to store data on the disks. All DVD disks are formatted UDF; this includes DVD-VIDEO and DVD-ROM disks. (...)

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Apple Power Macintosh G3 Manual Basics DVD-ROM Drive Technology - 36 File Management System Micro UDF & ISO9660 Universal Disk Format (UDF) is a file system standard that supports both rewritable and write-once media. It is a cross-platform data format that allows transparent interchange of data via optical discs or CD-ROMs. UDF also defines methods for reading, writing and other operations. Discs that are read on a Mac OS-based computer may also be r (...)

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Apple Power Macintosh G3 Desktop Manual Basics DVD-ROM Drive Technology - 37 supported either software or hardware updates to allow the drive to be upgraded so that it could write UDF. The first generation of DVD drives could not read CD-R media and in some cases actually damaged the media. UDF Features • Enables operating system independent interchange on optical media. • Designed to support the massive capacities of optical jukeboxes. • Only ISO standard (...)

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Apple Power Macintosh G3 Manual Basics DVD-ROM Drive Technology - 38 Stand-alone players use UDF while computer applications use the UDF bridge format, which consists of both ISO-9660 CD-ROM format and UDF. (...)

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Apple Power Macintosh G3 Manual Basics FireWire Technology - 39 FireWire Technology This section explains what FireWire technology is and gives specific information on Apple Computer’s FireWire card, which ships as an optional build-to-order module on the Power Macintosh G3 Desktop. FireWire Defined FireWire technology refers to Apple Computer’s cross- platform implementation of the high-speed serial data bus (defined by IEEE Standard 1394-1995) th (...)

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Power Macintosh G3 Basics FireWire Technology - 40 • A physically small thin serial cable - replaces today's bulky and expensive interfaces • Easy to use - no need for terminators, device IDs, screws, or complicated set-ups • Hot pluggable - devices can be added and removed while the bus is active • Scalable - the Standard defines 100, 200, and 400 Mbps devices and can support the multiple speeds on a single bus • Flexible - t (...)

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Power Macintosh G3 Basics FireWire Technology - 41 FireWire technology speeds up the movement of multimedia data and large files and enables the connection of digital consumer products -- including digital camcorders, digital video tapes, digital video disks, set-top boxes, and music systems -- directly to a personal computer. Devices can be connected in any combination of branching and chaining, as long as no loops are formed. A FireWire bus c (...)

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Power Macintosh G3 Basics FireWire Technology - 42 Isochronous data transfer provides guaranteed data transport at a pre-determined rate. This is especially important for multimedia applications where uninterrupted transport of time-critical data and just-in-time delivery reduce the need for costly buffering. This leads to perhaps one of the most important uses of FireWire as the digital interface for consumer electronics and AV peripherals. Fi (...)

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Apple Power Macintosh G3 Desktop Manual Basics FireWire Technology - 43 buffers to capture digital video. FireWire will gradually improve upon existing interfaces such as SCSI. FireWire provides higher speed, lower cost, and is more user friendly than most existing interfaces. SCSI products such as scanners, CDROMs, disk drives, and printers are already evaluating when they will move to FireWire. FireWire has the bandwidth capacity to replace and consolidate most o (...)

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Power Macintosh G3 Basics FireWire Technology - 44 card is Apple Computer’s first implementation of FireWire technology. This card is designed to work with digital video camcorders and decks that use the DV format and have a FireWire port (sometimes marked IEEE 1394 or DV IN/ OUT). The FireWire DVC hardware and software, together with a non-linear editing application, allow the user to capture DV movie clips to their hard disk. They can view t (...)

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Power Macintosh G3 Basics FireWire Technology - 45 200 Mbps and supports a single digital video camera. The external FireWire cable, which ships with the card, connects any one of the 6-pin, external connectors on the card to a 4-pin connector on the digital video camera. The Apple FireWire Card is designed to keep the network alive even if the Macintosh is shut down. Loss of power to the Macintosh will not affect the operation of a FireWire car (...)

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Apple Power Macintosh G3 Service source Basics FireWire Technology - 46 Connecting the FireWire DVC Card The 6-pin connector on the external FireWire cable plugs into the card and the 4-pin connector plugs into the camera’s DV port. Both connectors snap into place when properly engaged. A third-party cable is required in order to connect two computers together (or if the camera has a 6- pin FireWire port). External FireWire Cable Connectors (...)

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Power Macintosh G3 Basics FireWire Technology - 47 Installing the FireWire Card Software To install the Apple FireWire Card software: 1 Insert the FireWire CD. 2 Double-click the Installer icon. 3 Follow the on-screen instructions. 4 Restart the computer. Important: An extension called FireWire Support may be located in a folder titled FireWire in the Apple Extras folder on the Macintosh. Do not move this older extension to the Extensions f (...)

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Apple Power Macintosh G3 Manual Basics The Cuda Chip - 48 The Cuda Chip The Cuda is a microcontroller chip. Its function is to • Turn system power on and off • Manage system resets from various commands • Maintain parameter RAM (PRAM) • Manage the Apple Desktop Bus (ADB) • Manage the real-time clock Many system problems can be resolved by resetting the Cuda chip (see Symptom Charts for examples). Press the Cuda reset button on the logic board to re (...)

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Apple Power Macintosh G3 Manual Basics Resetting the Logic Board - 49 Resetting the Logic Board Resetting the logic board can resolve many system problems (refer to “Symptom Charts” for examples). Whenever you have a unit that fails to power up, you should follow this procedure before replacing any modules. 1 Unplug the computer. 2 Remove the battery from the logic board. 3 Disconnect the power supply cable from the logic board and then press the Power (...)

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Apple Power Macintosh G3 Service source Basics Resetting the Logic Board - 50 6 Reassemble the computer and test the unit. Note: This procedure resets the computer’s PRAM. Be sure to check the computer’s time/date and other system parameter settings afterwards. (...)

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Power Macintosh G3 Basics Sound - 51 Sound The sound system for the Power Macintosh G3 computers is implemented entirely on the I/O cards. (There are two versions available.) Each supports 16-bit stereo sound output and input, available simultaneously. The sound circuitry on the I/O card and system software can create sounds digitally and either play the sounds through speakers inside the enclosure or send the sound signals out through the so (...)

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Apple Power Macintosh G3 Manual Basics Sound - 52 The Power Macintosh G3 also records sound from several sources: • A microphone connected to the line-level sound input jack • A compact disc in the CD-ROM player • Analog sound from the cross-platform card in a PCI slot • Analog sound from optional communication cards With each sound input source, sound playthrough can be enabled or disabled. (...)

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Apple Power Macintosh G3 Service source Basics Sound - 53 Sound Output All sound output features for the Power Macintosh G3 computer are provided by an I/O card. The Audio I/O card (standard feature) provides one mini jack for sound output on the back of the enclosure. The AV I/O card (optional build-to-order feature) provides three sound output connectors—two RCA jacks for right and left sound out, and one 1/8-inch mini jack for a stereophonic phone plug. The (...)

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Power Macintosh G3 Basics Sound - 54 Sound Input The I/O card provides a stereo sound input jack on the back of the enclosure for connecting an external Apple PlainTalk line-level microphone or other sound source pair of line- level signals. The sound input jack accepts a standard 1/8- inch stereophonic phone plug (two signals plus ground). Note: The microphone for the Macintosh LC and LC II does not work with the I/O cards. The AV I/O ca (...)

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Apple Power Macintosh G3 Manual Basics Sound - 55 • Sound playback—computer-generated sound is sent to the speaker and the sound output jacks. • Sound playback with playthrough—computer sound and sound input are mixed and sent to the speakers and sound output jacks. • Sound record with playthrough—input sound is recorded and also sent to the speakers and sound output jacks. (...)

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Apple Power Macintosh G3 Desktop Manual Basics Video Input and Output - 56 Video Input and Output The AV I/O card (an optional build-to-order feature) supports video input and output of composite and S-video signals. The card supports input and output of NTSC, PAL, and SECAM video formats. The AV I/O card accepts video from an external source and displays it in a window on the computer’s display. The features of the video portion of the card include: • Video d (...)

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Apple Power Macintosh G3 Desktop Manual Basics Video Input and Output - 57 The card can accept video input from an external device, such as a VCR or camcorder. AV I/O Panel Audio Output Ports (left & right) Audio Input Ports (left & right) Sound Output Port Sound Input Port S-Video Ports (OUT and IN) Composite Video Ports (OUT and IN) (...)

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Apple Power Macintosh G3 Desktop Manual Basics The DAV Connector - 58 The DAV Connector The AV I/O Personality card has a digital audio video (DAV) connector. The DAV connector allows a PCI expansion card to access the AV I/O card video input data bus and associated control signals. The PCI card can use the digital video bus on the AV I/O card to transfer real-time video data to the computer. The PCI expansion card can contain a hardware video compressor or other (...)

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Apple Power Macintosh G3 Service source Basics Voltage Switch - 59 Voltage Switch The voltage switch must be set correctly to avoid damaging the computer. Insert a screw driver in the slot to set the switch to show “115” for voltages between 100 and 130. Set the switch to show “230” for voltages between 200 and 270. Some countries use two standardized voltages. If you aren’t sure which voltage is available, check with the electricity supply compa (...)

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Apple Power Macintosh G3 Desktop Manual Basics Voltage Switch - 60 Here is a table listing voltages for some countries: Country Voltage Japan 100 South Korea 100 or 220 Jamaica, Taiwan 110 Peru 110 or 220 Brazil, Lebanon 110–220 Philippines 115 Bermuda, Canada, Puerto Rico, United States, Venezuela 120 Mexico 127 Saudi Arabia 127 or 220 Hong Kong 200 (...)

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Apple Power Macintosh G3 Manual Basics Voltage Switch - 61 India, South Africa 220–250 Israel, Pakistan, Singapore 230 Australia, Kuwait, Malta, New Zealand, Northern Ireland, Papua New Guinea, Oman, Qatar, United Kingdom 240 Austria, Belgium, Denmark, Finland, France, Germany, Greece, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland 220–230 Bahrain, Chile, China (People’s Republic), Czechoslovakia, Egypt, Greenland, Hungary, (...)

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Apple Power Macintosh G3 Desktop Manual Basics PowerPC G3 and Backside Cache - 62 PowerPC G3 and Backside Cache Backside cache is a significant architectural design change from earlier PowerPC processors. The main advantage of the backside cache architecture is the speed of the dedicated CPU-to-L2 cache interface. Using the dedicated bus allows the CPU to access the fast L2 cache storage through a high speed bus without addressing the slower system bus or competi (...)

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Apple Power Macintosh G3 Service source Basics SDRAM DIMMs - 63 PowerPC G3, and a 2.5 L2 bus ratio, the backside cache bus speed will be 100MHz, twice the speed of the system bus. SDRAM DIMMs Three DRAM expansion slots on the logic board accept 3.3 V SDRAM unbuffered 8-byte DIMMs. The 168-pin DIMM has a 64-bit-wide data bus per bank. The minimum bank size supported on the Power Mac G3 Desktop model is 2 MB, and the largest is 32 MB. The largest DIMM supported i (...)

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Apple Power Macintosh G3 Service source Basics SDRAM DIMMs - 64 profile DRAM DIMMs must be used to reach the maximum DRAM expansion of 384 MB. Using higher-profile DRAM DIMMs, the maximum DRAM expansion for the Power Mac G3 Desktop is 192 MB. The DRAM DIMMs can be installed one or more at a time. The logic board supports only linear memory organization. Therefore, no performance gains are seen when two DIMMs of the same size are installed. Any supported size DIMM can (...)

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Apple Power Macintosh G3 Manual Basics SGRAM Video Memory - 65 SGRAM Video Memory The Power Macintosh G3 logic board comes with 2 MB of Synchronous Graphic RAM (SGRAM) video memory soldered on. The logic board also contains a video memory expansion slot that accepts a Small Outline DIMM (SO-DIMM) to increase video memory up to a maximum of 6 MB. Apple supports a 4 MB SGRAM SO-DIMM that is 32-bit wide, 144-pin, fast-paged, 83 MHz/12 ns cycle time or faster. Impo (...)

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Apple Power Macintosh G3 Desktop Manual Basics DIMM Slots - 66 DIMM Slots ROM Slot (Do not remove the ROM DIMM.) DRAM DIMM Slots Video Memory Slot (...)

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Apple Power Macintosh G3 Service source Basics Peripheral Component Interconnect (PCI) - 67 Peripheral Component Interconnect (PCI) The Peripheral Component Interconnect (PCI) expansion slots accept 6.88-inch and 12.283-inch PCI cards. Because the PCI bus is an industry standard, most existing PCI 2.0- compliant cards (with the addition of a Mac OS-specific software driver) will work in these computers. PCI offers significantly higher performance than the NuBus architec (...)

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Power Macintosh G3 Basics Front View - 68 Front View CD-ROM Drive Internal Hard Drive Speaker Floppy Disk Drive Power-On Light Power Button CD-ROM Drive Open/Close Button Expansion Bay Zip Drive (Optional) (...)

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Apple Power Macintosh G3 Desktop Manual Basics Rear View - 69 Rear View Monitor Power Socket SCSI Port ADB Port Monitor Port Internal Modem Card (Optional) Power Socket Security Lock Ports External Modem Port Printer Port Ethernet Port (10Base-T) Sound Input Port Sound Output Port Expansion Slot Access Covers (3) (...)

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Apple Power Macintosh G3 Desktop Manual Basics Internal Locator - 70 Internal Locator CD-ROM Drive Floppy Drive Hard Drive Zip Drive Logic Board Sound Card Power Supply (...)

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Apple Power Macintosh G3 Desktop Manual Basics Logic Board - 71 Logic Board PCI Slots Battery ROM DIMM PERCH Slot Internal SCSI Connector Speaker CD Audio Floppy Drive Connector Power Supply Connector Voltage Regulator LED SCSI Port ADB Port Serial Ports Ethernet Port Monitor Port IDE Connector Microprocessor DRAM DIMM Power On/Off Video Memory SO DIMM Processor Jumper Block Power Supply Jumper Block CUDA Reset Button (...)

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Apple Power Macintosh G3 Service source Basics Repair Strategy - 72 Repair Strategy Service the Power Macintosh G3 Desktop computers through module exchange and parts replacement. Customers can request on-site service from an Apple Authorized Service Provider Plus (AASP+) Apple Assurance (US only), or Apple Canada Technical Answerline (Canada only). They can also choose carry-in service from an AASP. Ordering Apple Service Providers planning to support the computer sy (...)

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Apple Power Macintosh G3 Service source Basics Repair Strategy - 73 Large businesses, universities, and K-12 accounts must provide a purchase order on all transactions, including orders placed through the AppleOrder (US only) or ARIS (Canada only) system. USA Ordering US Service providers not enrolled in AppleOrder may fax their orders to Service Provider Support (512-908- 8125) or mail them to Apple Computer, Inc. Service Provider Support MS 212-SPS Austin, TX 78714-912 (...)

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Apple Power Macintosh G3 Manual Basics Repair Strategy - 74 Canadian Ordering Canadian Service providers not enrolled in ARIS may fax their orders to Service Provider Support in Canada (1-800-903-5284). For Canadian inquiries, please call Service Provider Support at 905-513-5782 and select option #3. (...)

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Apple Power Macintosh G3 Service source Basics Warranty/AppleCare/ARIS - 75 Warranty/AppleCare/ARIS US Only The Power Macintosh G3 computers are covered under the Apple One-Year Limited Warranty. The AppleCare Service Plan is also available for these products. Service Providers are reimbursed for warranty and AppleCare repairs made to these computers. For pricing information, refer to “Service Price Pages.” Canada Only The Power Macintosh G3 computers are covered (...)

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Apple Power Macintosh G3 Manual http://www.apple.com A little background Two decades ago, Apple made its name by bringing advanced technology to mainstream users through extraordinarily easy-to-use products. In particular, we gained a reputation for success in pioneering the educational use of computers and championing the advance- ment of multimedia technology. Although that reputation has remained remarkably unchanged through the years— Apple is still regarded as (...)

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Apple Power Macintosh G3 Desktop Manual In addition, the logic board design of the Power Macintosh G3 systems exhibits the following characteristics in these vital areas: Processor. These computers use the innovative, next-generation PowerPC G3 processor, which was designed specifically to provide increased power at affordable cost. It does so through three major innovations: a state-of-the-art 0.25-micron manufacturing process, optimization for the Mac OS, and a new, more ef (...)

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Apple Power Macintosh G3 Manual http://www.apple.com The PowerPC G3 Processor: Taking the Macintosh to the Next Level A little background Nearly six years ago, Apple, IBM, and Motorola joined forces to create a new processor technology that would bring the performance advantages of the RISC (Reduced Instruction Set Computing) architecture—at that time limited to costly workstations—to personal computers. The result of this initiative was the development of PowerPC (...)

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Apple Power Macintosh G3 Service source Level 2 backside cache. By far the biggest boost to performance that the PowerPC G3 offers can be credited to its incorporation of an approach to level 2 cache memory known as backside cache. This approach effectively bypasses limitations on the speed at which transac- tions between the processor and the level 2 cache can occur. Earlier PowerPC processors used the system bus to access both the level 2 cache memory and the main memory, w (...)

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Apple Power Macintosh G3 Desktop Manual Service Source K Specifications Power Macintosh G3 Desktop (...)

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Apple Power Macintosh G3 Service source Specifications Introduction - 1 Introduction Specifications information for this product can be found in the Spec Database, which you can access at Service Source Online (http://service.info.apple.com) or on Service Source CD. Spec Database at Service Source Online From the Service Source Online home page, click Troubleshoot and Repair to access the main repair procedures page. Then click either Apple Spec in the navigatio (...)

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Apple Power Macintosh G3 Manual Service Source K Take Apart Power Macintosh G3 Desktop (...)

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Apple Power Macintosh G3 Desktop Manual Take Apart Top Housing - 1 Top Housing No preliminary steps are required before you begin this procedure. Note: The top housing covers the top, front, and left and right sides of the computer. Top Housing (...)

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Power Macintosh G3 Take Apart Top Housing - 2 1 Press the two tabs at the front corners of the top housing to release the top housing from the bottom chassis. Left Tab Right Tab (...)

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Apple Power Macintosh G3 Manual Take Apart Top Housing - 3 2 Pull the top housing forward about 1 to 2 inches and lift straight up to remove the top housing from the computer. (...)

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Power Macintosh G3 Take Apart Bezels - 4 Bezels Before you begin, remove the top housing. Note: As you face the computer, the bezels are in the middle of the top housing’s front panel. Depending on the unit, you may either see a blank bezel or a Zip drive bezel in the middle of the front panel, and you may have either a CD-ROM or a DVD-ROM bezel. CD-ROM Bezel Blank Bezel (...)

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